If the concentration of glucose $\left(\mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_6\right)$ in blood is 0.72 g $L^{-1}$, the molarity of glucose in blood is ______ × $10^{-3} \mathrm{M}$. (Nearest integer)
[Given : Atomic mass of C = 12, H = 1, O = 16 u]
